Results 21 to 30 of about 6,007 (209)
Radial TRASE: 2D RF encoding through mechanical rotation and active digital decoupling. [PDF]
Magn Reson MedAbstract Purpose Two‐dimensional (2D) transmit array spatial encoding (TRASE) previously required four radiofrequency fields; however, interactions between transmit (Tx) array elements caused significant challenges for 2D imaging. Here, we present a low‐cost, 2D radial encoding scheme (Radial TRASE) using a simplified two‐coil array.
Sedlock CJ +3 more
europepmc +2 more sources
Proposal and Challenge of Halbach Array Type Induction Coil for Cooktop Applications
IEEE Open Journal of Industry Applications, 2021 This paper proposes a new induction heating (IH) coil using Halbach-arranged coils for cooktop. In general, a control inverter is placed on the back side of the coil, but by using the Halbach array coils, magnetic flux leakage to the back of the coil can
Masahiro Aoyama +3 more
doaj +1 more source
Design and performance of a toroidal radiofrequency volume coil with intrinsic electromagnetic interference rejection for low-field portable Halbach-based MRI systems. [PDF]
Magn Reson MedAbstract Purpose One of the intrinsic limitations of low‐field MRI is low signal‐to‐noise ratio, which can be further reduced by electromagnetic interference (EMI) due to the lack of a Faraday shielded room. To address this issue, we propose a novel radiofrequency (RF) coil design that is inherently less sensitive to EMI while maintaining high receive ...
Vliem J +4 more
europepmc +2 more sources
Optimal Design of Magneto-Force-Thermal Parameters for Electromagnetic Actuators with Halbach Array
Actuators, 2021 A magnetic levitation isolation system applied for the active control of micro-vibration in space requires actuators with high accuracy, linear thrust and low power consumption.
Zhihao Li +3 more
doaj +1 more source
Original optimization Procedures of Halbach Permanent Magnet Segmented Array [PDF]
2019 19th International Symposium on Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering (ISEF), 2019 This paper presents a direct design and optimization procedures of an arbitrary PM Halbach Segmented Array. The direct design is based on the ideal PM Halbach definition. The arc width, magnitude and orientation of polarization of each segment are taken as optimization variables after calculation of PM thickness.
Touhami, Sarah +2 more
openaire +2 more sources
Energies, 2021 In high-speed magnetic railways, it is necessary to create the forces that lift the train. This effect is achieved by using active (EMS) or passive (EDS) magnetic systems.
Tomasz Kublin +4 more
doaj +1 more source
Comparison between Radial and Halbach Array PMLSM by Employing 2-D Electromagnetic Finite Element Analysis [PDF]
Journal of Electrical and Computer Engineering Innovations, 2016 The replacement of steam catapults with electromagnetic ones is becoming an overwhelming trend in aircraft launch systems. The Electromagnetic Aircraft Launch System (EMALS) offers significant benefits to the aircraft, ship, personnel, and operational ...
H. Moradi CheshmehBeig +1 more
doaj +1 more source
Characteristics Analysis of an Electromagnetic Actuator for Magnetic Levitation Transportation
Actuators, 2022 In this article, an electromagnetic actuator is proposed to improve the driving performance of magnetic levitation transportation applied to ultra-clean manufacturing. The electromagnetic actuator mainly includes the stator with the Halbach array and the
Junjie Jin +6 more
doaj +1 more source
Homopolar Bearingless Slice Motor With Flux-Biasing Halbach Arrays
IEEE Transactions on Industrial Electronics, 2020 We present a new configuration of bearingless slice motor that levitates and rotates a ring-shaped solid steel reluctance rotor. The rotor is 50 mm in diameter and has salient features on the outer surface. Symmetric sets of Halbach magnet arrays, mounted on the tips of stator teeth, establish a homopolar bias flux around the rotor.
Minkyun Noh, David L. Trumper
openaire +3 more sources
Ultracold neutron depolarization in magnetic bottles [PDF]
, 2012 We analyze the depolarization of ultracold neutrons confined in a magnetic field configuration similar to those used in existing or proposed magneto-gravitational storage experiments aiming at a precise measurement of the neutron lifetime.
Desai, A. M. +4 more
core +3 more sources